master
tools: switch libsystemd to runtime optional via dlopen
license: switch from BSD 4-clause to 3-clause
agetty: move agetty.c to agetty-cmd/ directory
scriptreplay: fix --divisor discarding fractional seconds
debug: Introduce UL_DEBUG_ALL
pty-session: defer raw mode until after signals are blocked
scriptlive: update shell selection documentation
scriptreplay(man): Add right arrow documentation
man: use 'pathname' instead of 'path name'
all-io: rename read_all/write_all to ul_read_all/ul_write_all
term-utils: add header file guards [lgtm scan]